import React from 'react';
import ReactDOM from 'react-dom';
import './index.css';
import App from './App';
import Effect from './page/Effect'
import Context from './page/Context'
import Reducer from './page/Reducer'
import Example6 from './page/Example6'
import Example7 from './page/Example7'
import UtilHook from './page/util-hook'
// 这个import 必须跟文件名一致  如果要使用里面的多个变量  就要用解构的方式



ReactDOM.render(
    <Effect />,
  document.getElementById('root')
);

// If you want your app to work offline and load faster, you can change
// unregister() to register() below. Note this comes with some pitfalls.
// Learn more about service workers: https://bit.ly/CRA-PWA
// serviceWorker.unregister();
